package top.easyblog.common.util;

import org.apache.commons.httpclient.Header;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.NameValuePair;
import org.apache.commons.httpclient.methods.PostMethod;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.Random;

/**
 * @author huangxin
 */
public class SendMessageUtils {


    private static final Logger log = LoggerFactory.getLogger(SendMessageUtils.class);
    private static final String SMS_Url = "http://sms.webchinese.cn/web_api/";

    /**
     * @param Uid          SMS用户id  ： huangxin123
     * @param Key          接口秘钥：SMS登录可查（非登录密码） d41d8cd98f00b204e980
     * @param sendPhoneNum 短信发送目标号码
     * @param desc         短信内容
     * @return Integer(1 ： 成功码 ， 其他失败 ， 具体参见注释)
     */
    public static Integer send(String Uid, String Key, String sendPhoneNum, String desc) {

        HttpClient client = new HttpClient();
        PostMethod post = new PostMethod(SMS_Url);
        // 在头文件中设置转码
        post.addRequestHeader("Content-Type", "application/x-www-form-urlencoded;charset=gbk");

        //设置参数
        NameValuePair[] data = {
                new NameValuePair("Uid", Uid),
                //秘钥
                new NameValuePair("Key", Key),
                new NameValuePair("smsMob", sendPhoneNum),
                new NameValuePair("smsText", desc)
        };

        post.setRequestBody(data);

        try {
            client.executeMethod(post);
        } catch (Exception e) {
            e.printStackTrace();
        }


        Header[] headers = post.getResponseHeaders();
        int statusCode = post.getStatusCode();
        log.info("statusCode:" + statusCode);

        String result = "";
        try {
            result = new String(post.getResponseBodyAsString().getBytes("gbk"));
        } catch (Exception e) {
            e.printStackTrace();
        }

        post.releaseConnection();

        return Integer.parseInt(result);
    }

    /**
     * -1     没有该用户账户
     * -2     接口密钥不正确 [查看密钥]不是账户登陆密码
     * -21    MD5接口密钥加密不正确
     * -3     短信数量不足
     * -11    该用户被禁用
     * -14    短信内容出现非法字符
     * -4     手机号格式不正确
     * -41    手机号码为空
     * -42    短信内容为空
     * -51    短信签名格式不正确接口签名格式为：【签名内容】
     * -6 IP限制
     * 大于0    短信发送数量
     * 以上作为补充
     */
    public static String getMessage(Integer code) {
        String message;
        if (code > 0) {
            message = "SMS-f发送成功！短信量还有" + code + "条";
        } else if (code == -1) {
            message = "SMS-没有该用户账户";
        } else if (code == -2) {
            message = "SMS-接口密钥不正确";
        } else if (code == -21) {
            message = "SMS-MD5接口密钥加密不正确";
        } else if (code == -3) {
            message = "SMS-短信数量不足";
        } else if (code == -11) {
            message = "SMS-该用户被禁用";
        } else if (code == -14) {
            message = "SMS-短信内容出现非法字符";
        } else if (code == -4) {
            message = "SMS-手机号格式不正确";
        } else if (code == -41) {
            message = "SMS-手机号码为空";
        } else if (code == -42) {
            message = "SMS-短信内容为空";
        } else if (code == -51) {
            message = "SMS-短信签名格式不正确接口签名格式为：【签名内容】";
        } else if (code == -6) {
            message = "SMS-IP限制";
        } else {
            message = "其他错误";
        }
        return message;
    }

    /**
     * @param code 产生的随机码的位数
     * @return code位随机码
     */
    public static String getRandomCode(Integer code) {
        Random random = new Random();
        StringBuilder result = new StringBuilder();
        for (int i = 0; i < code; i++) {
            result.append(random.nextInt(10));
        }
        return result.toString();
    }
}
